Oil filler



FIG. 1 is a perspective view of an oil filler showing my new design;

FIG. 2 is a front elevational view thereof, the rear being identical inappearance;

FIG. 3 is a side elevational view thereof, the opposite side beingidentical in appearance;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

The ornamental design for oil filler, substantially as shown anddescribed.